1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
/*
* boot.S - simple register setup code for stand-alone Linux booting
*
* Copyright (C) 2006 ARM Limited
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
mov r0, #0x16000000 @ UART base (Integrator/CP)
mov r1, #0x10 @ ibrd
str r1, [r0, #0x24]
mov r1, #0xc300
orr r1, #0x0001 @ cr
str r1, [r0, #0x30]
mov r0, #0
mov r1, #0x13
orr r1, r1, #0x100 @ Integrator/CP
mov r2, #0
mov r3, #0
mov lr, #0x8000
orr lr, lr, #1 @ Thumb mode
bx lr @ jump to the kernel
|
